I have heard that audio engineer's don't necessarily master to a flat EQ because such a small section of listeners are listening with a flat EQ. Most are using car speakers, airpods, etc so they master it based on those expectations.
Can confirm. When I was in that world we'd have a shitty boom-box on a shelf that got pulled out for exactly that purpose. But you'd always start from the studio kit and work down, never the other way.
In my understanding, this whole thing is basically 1:1 with color spaces in display tech, except with pictures/video you at least get to encode what you targeted, versus with audio, you don't.
Yeah that's pretty good way to put it, except I'd say the average person is using way better screens with smartphones than the quality of speakers/headphones their using.
